The accolades began with ORNL receiving the 2025 SAMPE Organizational Excellence Award, an esteemed national recognition bestowed upon organizations demonstrating extraordinary contributions to the advanced materials and processes community. This award reflects ORNL’s multidisciplinary impact across industrial, academic, and governmental sectors, highlighting its vital role in accelerating innovation in composites.

Among the technological breakthroughs celebrated was ORNL’s multiplexing extrusion system, which earned the Equipment and Tooling Innovation Award. This revolutionary additive manufacturing technology integrates multiple 3D printing extruders into a unified high-output manufacturing stream. By leveraging specially engineered nozzles, the system simultaneously deposits multiple materials within a single continuous bead, eliminating the need for frequent equipment swaps or manual retooling. This integration not only accelerates print speed but also enhances precision and material versatility, representing a transformative advance in large-scale composite fabrication.

The multiplexing extrusion system’s design solves critical bottlenecks faced in traditional extrusion-based additive manufacturing. Conventional processes often require sequential material changes that increase downtime and complicate production workflows. ORNL’s approach harmonizes throughput with multi-material capability, enabling complex composite structures with spatially varying material properties to be produced seamlessly. This technology stands to revolutionize sectors such as aerospace, automotive, and energy, where lightweight, multifunctional composite components are increasingly demanded.

In addition to tooling innovations, ORNL’s collaborative research partnership with Electroimpact garnered the Material and Process Innovation Award. This project pioneered the development of composite rocket nozzles using modular, additively manufactured heads combined with assisted large-scale dissolvable tooling. By employing water-soluble molds, the manufacturing process eliminates reliance on traditional machining, harsh solvents, and labor-intensive demolding operations, thereby significantly reducing production costs and lead times.

The use of dissolvable tooling embodies a novel strategy in advanced composites manufacturing. It enables the fabrication of geometrically complex and load-optimized components with minimal post-processing. This innovation not only streamlines production but also expands design freedom, facilitating new possibilities in aerospace propulsion systems and other high-performance applications where precision and weight reduction are paramount.

Robert Wagner, ORNL’s associate laboratory director for the Energy Science and Technology Directorate, emphasized the broader implications of these advances. According to Wagner, ORNL’s pioneering work is pivotal in transitioning carbon fiber and composite technologies from experimental platforms into real-world industrial applications. The technologies emerging from ORNL’s labs are expected to revolutionize sectors ranging from defense and infrastructure to commercial transportation and renewable energy.

Individual excellence in the composites domain was also recognized during the CAMX event. Uday Vaidya, holding the prestigious University of Tennessee-ORNL Governor’s Chair in Advanced Composites Manufacturing, was awarded the Academic Pioneer Award. This accolade honors his visionary research and sustained contributions that have pushed forward engineered plastics and composites technologies. Vaidya’s role as the chief technology officer of IACMI-The Composites Institute has been instrumental in fostering collaborative ecosystems that accelerate composite innovations from concept to commercialization.

CAMX, held this year in Orlando, Florida, is widely regarded as the foremost global exposition and conference for composites and advanced materials. The event serves as a vital forum for disseminating scientific breakthroughs, fostering industrial partnerships, and showcasing cutting-edge manufacturing technologies that define the future of materials engineering.

Many of ORNL’s celebrated innovations at CAMX are supported by the DOE’s Office of Energy Efficiency and Renewable Energy through initiatives such as the SM2ART Program in collaboration with the University of Maine’s Advanced Structures and Composites Center. This funding enables high-risk, high-reward research focused on scalable, energy-efficient manufacturing technologies that strengthen the U.S. position in critical materials and composites.

UT-Battelle, the managing contractor of ORNL, operates the laboratory for the DOE’s Office of Science, the nation’s largest federal supporter of fundamental research in physical sciences. The Office of Science’s sustained investment in foundational and applied research at ORNL underscores a commitment to confronting some of the most pressing scientific and technological challenges of our time.

In summary, ORNL’s multiple awards at CAMX 2025 reflect the laboratory’s unparalleled expertise and innovative capacity in the field of composite materials and additive manufacturing. These advancements promise to accelerate the deployment of next-generation materials solutions across diverse industries, enabling lightweight, multifunctional components with enhanced sustainability and performance. As additive manufacturing technologies continue to evolve, ORNL’s pioneering efforts serve as a beacon for the future of advanced materials innovation.

Subject of Research: Advanced composites manufacturing and additive manufacturing technologies, including multiplexing extrusion systems and dissolvable tooling for composite components.

Article Title: Oak Ridge National Laboratory’s Pioneering Advances in Composites Manufacturing Captured by Four Prestigious Awards at CAMX 2025

News Publication Date: 2025 (Exact date unspecified)

Web References:
– ORNL news on 2025 SAMPE Organizational Excellence Award: https://www.ornl.gov/news/ornl-receives-2025-sampe-organizational-excellence-award
– Electroimpact Website: https://www.electroimpact.com/
– IACMI-The Composites Institute: https://iacmi.org/
– DOE Office of Science: https://www.energy.gov/science/office-science
– ORNL SM2ART Program: https://www.ornl.gov/content/sm2art

Image Credits: ORNL, U.S. Department of Energy

Keywords: Manufacturing, Additive manufacturing, Composite materials, Multiplexing extrusion system, Dissolvable tooling, Rocket nozzles, Aerospace composites, Carbon fiber, Advanced manufacturing, Composites innovation

The implications of this leap are profound. SOCs have historically been manufactured in planar stacks involving layered components such as electrodes, electrolytes, and metallic interconnects. These assemble into bulky configurations that not only increase the device’s specific weight but also introduce mechanical vulnerabilities through the necessity of seals and interconnects prone to thermal and chemical degradation. By contrast, the newly developed gyroidal SOC features a monolithic structure formed from a triply periodic minimal surface—a mathematical geometry typified by continuous, highly interconnected channels that optimize surface area within minimal volume. This geometry enables unprecedented electrode surface exposure and gas diffusion pathways, unlocking superior electrochemical performance while drastically reducing weight and volume.

At the heart of this breakthrough lies additive manufacturing, or 3D printing, which affords exceptional resolution and control over complex geometries. Leveraging this advanced fabrication method, the research team successfully printed a monolithic gyroid-shaped SOC that integrates all functional components seamlessly into a single architecture. By omitting traditional metallic interconnects and sealing elements, the design simplifies manufacturing and mitigates common failure modes related to thermal stresses and corrosive degradation of dissimilar materials. This innovation achieves a remarkable balance of structural integrity and electrochemical functionality hitherto unimaginable in solid oxide technology.

The gyroidal structure’s continuous porous network enhances both ion transport and gas diffusion. Efficient fuel and oxidant delivery within the intricate 3D geometry ensures that reaction sites are uniformly accessible, markedly improving the cell’s operational stability and performance. Compared to conventional planar configurations, the gyroidal SOC boasts a drastically enhanced mass-specific power density exceeding 1 W per gram, which translates to a volumetric power density surpassing 3 W per cubic centimeter during fuel cell operation. These metrics reflect a significant advancement, suggesting that energy systems can now be constructed with considerably reduced size and weight without compromising output.

In electrolysis mode, where the SOC facilitates hydrogen production by electrically splitting water vapor, the gyroidal cell’s volumetric and mass-indexed hydrogen production rates exhibit similarly extraordinary improvements. The conventional planar stacks, constrained by their 2D nature, tend to be bulky and suffer from inefficient spatial utilization, resulting in limited hydrogen output per unit mass and volume. The novel 3D design produces hydrogen at rates nearly an order of magnitude higher—approximately 7 × 10^−4 normal cubic meters per hour per gram in specific terms and 2 × 10^−3 normal cubic meters per hour per cubic centimeter volumetrically—marking a pivotal stride forward in hydrogen generation efficiency.

Beyond power and gas production metrics, the monolithic gyroidal cell demonstrates exceptional thermomechanical stability. The continuous nature of the additive-manufactured structure effectively mitigates thermal expansion mismatches that historically cause delamination and mechanical failure in multi-layered SOC stacks. This durable mechanical behavior significantly extends operational life and reliability, crucial for technologies deployed under harsh high-temperature environments. Furthermore, the manufacturing approach reduces the assembly complexity, thereby lowering cost and facilitating scalable production of SOC modules tailored for diverse applications ranging from portable power units to large-scale hydrogen production facilities.

A key feature enabling this breakthrough is the use of triply periodic minimal surface geometries—complex 3D mathematical surfaces that balance minimal interfacial area with maximal connectivity. Such surfaces have been studied extensively in materials science for their ability to create lightweight, yet mechanically robust architectures. By applying this concept to SOC design, the research team has opened avenues for optimized electrode interfaces and improved gas flow channels, which traditionally have been constrained by planar fabrication methods. The successful realization of these surfaces via high-precision additive manufacturing underscores the unique synergies between advanced geometry, materials science, and manufacturing technology essential for future energy devices.

The elimination of metallic interconnects—a traditional SOC design staple—is particularly noteworthy. Metallic components, while enabling electrical pathways between cells in planar stacks, necessitate complex sealing systems and introduce components susceptible to oxidation and thermal fatigue. By fabricating a continuous ceramic monolith encompassing all electrochemical functions, the gyroidal SOC intrinsically solves these issues, reducing parasitic resistances, improving redox stability, and simplifying system integration. This monolithic approach holds promise not only for stationary power and electrolysis systems but also for mobile, aerospace, and off-grid applications where size, weight, and robustness are paramount.

In addition to its technical superiority, this new design paradigm also addresses critical socioeconomic and environmental challenges. Hydrogen production via high-efficiency electrolysis is a cornerstone of decarbonized energy futures, enabling energy storage and sector coupling essential for mitigating climate change. The gyroidal SOC’s enhanced volumetric and specific hydrogen production rates could substantially reduce capital costs and footprint of electrolyzer installations, making clean hydrogen more economically viable and globally accessible. Similarly, improved fuel cell performance aides distributed power generation with minimized material and energy resource consumption, aligning with sustainability mandates.

Moreover, the straightforward manufacturing procedure heralds a shift in SOC production philosophy. Conventional SOC stacks involve sequential sintering, layering, and sealing of disparate materials—a process fraught with yield limitations and costly quality control measures. In contrast, additive manufacturing of monolithic structures enables rapid prototyping, seamless component integration, and versatile design iterations without retooling. Such flexibility could accelerate innovation cycles and facilitate tailored cell designs optimized for specific operational conditions, fueling a new era of SOC customization and industrial adoption.

While this advancement marks a major milestone, the research also points toward future explorations in optimizing material compositions and microstructural refinements integrated within the gyroidal framework. Potential improvements include engineering functional layers with graded porosities, incorporating advanced electrode catalysts, and coupling with novel electrolytes to further elevate performance metrics and operational lifespans. The synergy of geometry-guided design and materials innovations promises to sustain SOC competitiveness across a broad spectrum of clean energy technologies.

Beyond the immediate field of solid oxide technology, the study epitomizes the power of modern manufacturing technologies combined with intricate mathematical geometries to redefine engineering boundaries. The research exemplifies how leveraging additive manufacturing’s resolution and accuracy can translate theoretical minimal surface concepts into practical, high-performance devices for energy conversion—a principle that could reverberate across batteries, sensors, catalysis, and beyond.

In summary, the monolithic gyroidal SOC developed by Zhou, Lalwani, Sun, and colleagues represents a paradigm shift in electrochemical energy conversion. By transcending the 2D planar constraints, adopting triply periodic minimal surface architectures, and capitalizing on additive manufacturing, the team has realized a device that outperforms existing planar stacks by nearly an order of magnitude in key performance metrics while simplifying manufacturing and enhancing durability. This breakthrough heralds a future where energy storage and generation devices are not only more efficient but also smaller, lighter, and more adaptable to diverse real-world demands.

As the energy sector races toward decarbonization and sustainable solutions, innovations such as this gyroidal SOC illuminate pathways toward integrating clean hydrogen production and power generation in compact and resilient forms. The successful realization of such advanced architectures underscores the foundational importance of multidisciplinary collaboration—melding mathematics, materials science, and manufacturing engineering—to catalyze revolutionary progress. This research stands as a beacon for optimizing energy technologies that will underpin the global shift to a cleaner, more sustainable energy landscape.

Ultimately, the advent of monolithic gyroidal solid oxide cells promises to reimagine how electrical and chemical energy conversion devices are conceptualized, fabricated, and deployed. By breaking free from traditional planar designs, this innovation offers a glimpse into a new generation of scalable, efficient, and robust energy devices that are essential for meeting the increasing energy demands and environmental challenges of the 21st century.

Subject of Research: Solid oxide cells (SOCs) with 3D gyroidal architecture fabricated via additive manufacturing for enhanced energy conversion efficiency and durability.

Article Title: Monolithic gyroidal solid oxide cells by additive manufacturing.

Article References:
Zhou, Z., Lalwani, A.R., Sun, X. et al. Monolithic gyroidal solid oxide cells by additive manufacturing. Nat Energy (2025). https://doi.org/10.1038/s41560-025-01811-y

Image Credits: AI Generated